1180042776 has 256 divisors, whose sum is σ = 3799756800. Its totient is φ = 335923200.

The previous prime is 1180042769. The next prime is 1180042783. The reversal of 1180042776 is 6772400811.

It is an interprime number because it is at equal distance from previous prime (1180042769) and next prime (1180042783).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1180042776.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2725056 + ... + 2725488.

It is an arithmetic number, because the mean of its divisors is an integer number (14842800).

Almost surely, 2^1180042776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1180042776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1899878400).

1180042776 is an abundant number, since it is smaller than the sum of its proper divisors (2619714024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1180042776 is a wasteful number, since it uses less digits than its factorization.

1180042776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 1180042776 is about 34351.7506977446. The cubic root of 1180042776 is about 1056.7345741248.

The spelling of 1180042776 in words is "one billion, one hundred eighty million, forty-two thousand, seven hundred seventy-six".